Microsoft Exchange Server Spoofing Vulnerability
Priority HIGH 72CWE-451Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Microsoft. Impact type from Microsoft.
Summary
Microsoft Exchange Server Spoofing Vulnerability
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.08467 95th percentileScored 2026-11-07
Fix Fixed Microsoft: 1 update
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 13 | 15.02.0 to before 15.02.1258.039 | 15.02.1258.039 | Patch available | CNA |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 14 | 15.02.0 to before 15.02.1544.014 | 15.02.1544.014 | Patch available | CNA |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 23 | 15.01.0 to before 15.01.2507.044 | 15.01.2507.044 | Patch available | CNA |
- Microsoft Exchange Server 2019 Cumulative Update 13 VendorMicrosoft Affected 15.02.0 to before 15.02.1258.039 Fixed in 15.02.1258.039 Patch available CNA
- Microsoft Exchange Server 2019 Cumulative Update 14 VendorMicrosoft Affected 15.02.0 to before 15.02.1544.014 Fixed in 15.02.1544.014 Patch available CNA
- Microsoft Exchange Server 2016 Cumulative Update 23 VendorMicrosoft Affected 15.01.0 to before 15.01.2507.044 Fixed in 15.01.2507.044 Patch available CNA
CPE configurations NVD · 36
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:exchange_server:2016:-:*:*:*:*:*:* | 2016 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_1:*:*:*:*:*:* | 2016 cumulative_update_1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_10:*:*:*:*:*:* | 2016 cumulative_update_10 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_11:*:*:*:*:*:* | 2016 cumulative_update_11 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_12:*:*:*:*:*:* | 2016 cumulative_update_12 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_13:*:*:*:*:*:* | 2016 cumulative_update_13 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_14:*:*:*:*:*:* | 2016 cumulative_update_14 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_15:*:*:*:*:*:* | 2016 cumulative_update_15 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_16:*:*:*:*:*:* | 2016 cumulative_update_16 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_17:*:*:*:*:*:* | 2016 cumulative_update_17 | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:exchange_server:2016:-:*:*:*:*:*:* Versions 2016 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_1:*:*:*:*:*:* Versions 2016 cumulative_update_1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_10:*:*:*:*:*:* Versions 2016 cumulative_update_10 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_11:*:*:*:*:*:* Versions 2016 cumulative_update_11 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_12:*:*:*:*:*:* Versions 2016 cumulative_update_12 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_13:*:*:*:*:*:* Versions 2016 cumulative_update_13 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_14:*:*:*:*:*:* Versions 2016 cumulative_update_14 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_15:*:*:*:*:*:* Versions 2016 cumulative_update_15 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_16:*:*:*:*:*:* Versions 2016 cumulative_update_16 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_17:*:*:*:*:*:* Versions 2016 cumulative_update_17 Vulnerable ·Microsoft
Show 26 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_18:*:*:*:*:*:* | 2016 cumulative_update_18 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:* | 2016 cumulative_update_19 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_2:*:*:*:*:*:* | 2016 cumulative_update_2 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_20:*:*:*:*:*:* | 2016 cumulative_update_20 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_21:*:*:*:*:*:* | 2016 cumulative_update_21 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_22:*:*:*:*:*:* | 2016 cumulative_update_22 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_3:*:*:*:*:*:* | 2016 cumulative_update_3 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_4:*:*:*:*:*:* | 2016 cumulative_update_4 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_5:*:*:*:*:*:* | 2016 cumulative_update_5 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_6:*:*:*:*:*:* | 2016 cumulative_update_6 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_7:*:*:*:*:*:* | 2016 cumulative_update_7 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_8:*:*:*:*:*:* | 2016 cumulative_update_8 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_9:*:*:*:*:*:* | 2016 cumulative_update_9 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2019:-:*:*:*:*:*:* | 2019 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_1:*:*:*:*:*:* | 2019 cumulative_update_1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_10:*:*:*:*:*:* | 2019 cumulative_update_10 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_11:*:*:*:*:*:* | 2019 cumulative_update_11 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_12:*:*:*:*:*:* | 2019 cumulative_update_12 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_2:*:*:*:*:*:* | 2019 cumulative_update_2 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_3:*:*:*:*:*:* | 2019 cumulative_update_3 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_4:*:*:*:*:*:* | 2019 cumulative_update_4 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_5:*:*:*:*:*:* | 2019 cumulative_update_5 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_6:*:*:*:*:*:* | 2019 cumulative_update_6 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_7:*:*:*:*:*:* | 2019 cumulative_update_7 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:* | 2019 cumulative_update_8 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:* | 2019 cumulative_update_9 | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_18:*:*:*:*:*:* Versions 2016 cumulative_update_18 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:* Versions 2016 cumulative_update_19 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_2:*:*:*:*:*:* Versions 2016 cumulative_update_2 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_20:*:*:*:*:*:* Versions 2016 cumulative_update_20 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_21:*:*:*:*:*:* Versions 2016 cumulative_update_21 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_22:*:*:*:*:*:* Versions 2016 cumulative_update_22 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_3:*:*:*:*:*:* Versions 2016 cumulative_update_3 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_4:*:*:*:*:*:* Versions 2016 cumulative_update_4 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_5:*:*:*:*:*:* Versions 2016 cumulative_update_5 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_6:*:*:*:*:*:* Versions 2016 cumulative_update_6 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_7:*:*:*:*:*:* Versions 2016 cumulative_update_7 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_8:*:*:*:*:*:* Versions 2016 cumulative_update_8 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_9:*:*:*:*:*:* Versions 2016 cumulative_update_9 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2019:-:*:*:*:*:*:* Versions 2019 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_1:*:*:*:*:*:* Versions 2019 cumulative_update_1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_10:*:*:*:*:*:* Versions 2019 cumulative_update_10 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_11:*:*:*:*:*:* Versions 2019 cumulative_update_11 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_12:*:*:*:*:*:* Versions 2019 cumulative_update_12 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_2:*:*:*:*:*:* Versions 2019 cumulative_update_2 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_3:*:*:*:*:*:* Versions 2019 cumulative_update_3 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_4:*:*:*:*:*:* Versions 2019 cumulative_update_4 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_5:*:*:*:*:*:* Versions 2019 cumulative_update_5 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_6:*:*:*:*:*:* Versions 2019 cumulative_update_6 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_7:*:*:*:*:*:* Versions 2019 cumulative_update_7 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:* Versions 2019 cumulative_update_8 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:* Versions 2019 cumulative_update_9 Vulnerable ·Microsoft
Remediation
Microsoft 1 update
- Security Update
- Microsoft Exchange Server 2016 Cumulative Update 23 15.01.2507.044
- Microsoft Exchange Server 2019 Cumulative Update 13 15.02.1258.039
- Microsoft Exchange Server 2019 Cumulative Update 14 15.02.1544.014
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Spoofing
- Exploited
- No
- Publicly disclosed
- Yes
- Exploitability
- Exploitation More Likely
Timeline
- 2026-10-02 Threatist record created from CVE-2024-49040
- 2026-10-03 Alias added: GHSA-7xx8-v929-wp8r
- 2026-10-21 EPSS moved to the 95th–99th percentile
- 2026-10-25 EPSS moved to the 90th–95th percentile
- 2026-10-29 EPSS moved to the 95th–99th percentile
References
More Microsoft Exchange Server vulnerabilities
- TI-2024-14170 Microsoft Exchange Server Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2022-19610 Microsoft Exchange Server Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2021-13547 Microsoft Exchange Server Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2021-13502 Microsoft Exchange Server Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2021-08465 Microsoft Exchange Server Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2023-07929 Microsoft Exchange Server Remote Code Execution Vulnerability KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2024-49040 · CVE Program
- CVE-2024-49040 · NVD
- FIRST EPSS
- GHSA-7xx8-v929-wp8r · GitHub Advisory Database · CC BY 4.0
- CVE-2024-49040 · Microsoft Security Update Guide
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences